Time Zone Converter API

Current time or any date in any IANA time zone, UTC offset, weekday and Unix time, and convert one moment to many time zones at once.

Authentication & base URL

Subscribe through one of our marketplace listings; your marketplace API key and base URL are shown there. All endpoints return JSON over HTTPS, served from a global edge network (typically 20–150 ms).

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Endpoints

GET `/v1/time`

Time in zones

Parameter	In	Description	Example
`tz`	query	IANA time zone	`Europe/Madrid`
`datetime`	query	ISO 8601 date-time (empty = now)
`to`	query	Comma-separated time zones to convert to	`America/New_York,Asia/Tokyo`

Example

GET /v1/time?tz=Europe%2FMadrid&datetime=&to=America%2FNew_York%2CAsia%2FTokyo

{
  "utc": "2026-10-13T16:28:02.937Z",
  "unix": 1791908882,
  "timezone": "Europe/Madrid",
  "local": "2026-10-13T18:28:02",
  "weekday": "Tuesday",
  "utcOffset": "+02:00",
  "converted": [
    {
      "timezone": "America/New_York",
      "local": "2026-10-13T12:28:02",
      "weekday": "Tuesday",
      "utcOffset": "-04:00"
    },
    {
      "timezone": "Asia/Tokyo",
      "local": "2026-10-14T01:28:02",
      "weekday": "Wednesday",
      "utcOffset": "+09:00"
    }
  ]
}

Current time or any date in any IANA time zone, UTC offset, weekday and Unix time, and convert one moment to many time zones at once.

Use cases

Scheduling apps, meeting planners, world clocks, global e-commerce, travel tools.

Why this API

Fast: runs on a global edge network, typical response well under 1 second.
Reliable: simple JSON, clear error messages.
Fair pricing: Free plan 500 requests/month, Pro 25,000 for $4.99, Ultra 150,000 for $14.99.

Pricing

Free plan with 500 calls per month, then Pro (25,000 calls for $4.99/month) and Ultra (150,000 calls for $14.99/month). See all plans.